I don't know much about photo rights, but when the 1st "China balloon" went overhead I noticed the photographer and looked up his Twitter. This link will get you to the original photo from him (I think its the original, anyway).
https://twitter.com/Stormchaser_TS/status/1621622839592853504
The photographer is a professional and it looks like from his account that he does work with storms and astrophotography, too. I get the impression his photo may have been the best obtained by people on the ground (at least outside of government).
I think looking at the original photo might give some idea whether or not the swiveling camera hypothesis has any merit.